A new study reveals that climate change has intensified El Niño events to alarming levels, with researchers finding that these weather phenomena have grown approximately 40% stronger over the past four decades compared to pre-industrial times. The findings arrive as the world currently experiences an exceptionally powerful El Niño, with forecasters predicting that the next occurrence between 2026 and 2027 could set records for intensity.
Scientists examined coral samples from the Galápagos Islands spanning more than a thousand years to track historical temperature patterns. By analyzing the chemical composition of these long-lived organisms, researchers identified a clear trend: El Niño events remained relatively stable until the widespread use of fossil fuels began in the 19th century, after which their strength increased dramatically. Climate simulations ruled out natural causes such as volcanic activity or solar changes as explanations for this shift.
El Niño events occur cyclically in the Pacific Ocean, disrupting global weather patterns by raising sea surface temperatures and triggering droughts, floods, and wildfires worldwide. The strengthening of these events poses serious threats to ecosystems like the Amazon rainforest and threatens global food security. Researchers emphasize that the compounding effects of climate change and intensified El Niño cycles could accelerate warming trends and amplify humanitarian crises.
Scientists stress the urgency of reducing fossil fuel dependence to mitigate further global warming and its connection to increasingly severe El Niño patterns. The escalating risks underscore that no single nation possesses sufficient resources to fully protect itself from these mounting climate impacts.
Originally reported by Livescience →
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